VIHAAN’S MATH LAB AN INTERACTIVE BOOK
Math makes more sense when you can see it.
Explore mathematics by changing diagrams, seeing what happens, and trying a question. Choose from 258 lessons, from counting to calculus.
SEE HOW IT WORKS
How learning works
First, try a picture you can change. Then choose your grade, learn the idea, and grow through ten mastery levels. Every step helps you understand more, not just answer faster.
Can you make 10?
Six dots are already full. Your job is to tap the empty circles until the ten-frame shows all 10 dots.
Count the empty circles as you fill them. When the frame is full, the equation will appear.
Start by tapping one empty circle. Keep going until the frame is full.
YOUR LEARNING JOURNEY
Learn a topic. Master ten levels.
Explore freely. Take a placement check if you already know the basics, or begin at Level 1. New levels open as you demonstrate understanding.
How unlocking works: Each level has five questions. Get at least four right on the first try to unlock the next. A placement check can help you start further ahead.
Choose your grade and topic
Find a lesson in the 258-chapter library. Follow your grade pathway or explore another topic.
Explore the idea
Change a diagram, make a prediction, and see why the mathematics works.
Find your starting level
Begin at Level 1, or take the optional five-question placement check.
Complete mastery challenges
Work through ten mastery levels, with five questions in each test and deeper reasoning as you progress.
Learn from mistakes
See helpful explanations, revisit missed questions, and practice the ideas you need.
Unlock what comes next
Advance to the next level and pick up where you left off. Progress is stored in this browser.
VISUAL MATH MYSTERIES · KINDERGARTEN TO COLLEGE
Every picture hides a mathematical idea.
Investigate clues, choose a strategy, draw a helpful line, and solve a new challenge. The answer stays hidden until you try. Build real mathematical reasoning, one mystery at a time.
Browse subjects
Choose a subject to see the lessons it contains.
START LEARNING
Find lessons for your grade
Choose your grade to see every lesson in a suggested learning order. Your progress stays on this device.
For parents and teachers: how to use a lesson
Ask the student to predict one change, then let them move the diagram. Ask them to explain what happened in their own words before starting practice. If the lesson is difficult, open its prerequisite first. Short, thoughtful practice is more useful than rushing through questions.
A lesson is complete when its Practice and Apply checks each reach 80% correct on first tries. Progress stays in this browser on this device.